Vinca Flower Maintenance. Plant in any general-purpose well-draining potting soil. The flowers are also attractive to butterflies.
Annual vinca grows 12 to 18 inches tall and comes in pink purple red white magenta and bi-colors. Soil should be well-drained. Annual vinca is drought tolerant and requires almost no maintenance to keep it looking terrific.
Annual vinca is drought tolerant and requires almost no maintenance to keep it looking terrific.
Apart 30-45 cm to cover large areas. The soil should be moist 6 inches deep. Tolerates close to full shade but flowers best in full sun. Vinca is heat and drought tolerant.